Fill in: of, on, in. 1 There are too many cars the roads.
2 What we do has a big impact the environment.
3 We should all be aware how our actions affect the environment. 4 There are 1,556 endangered speciesthe world today.
5 Elephants, lions and leopards are all animals danger.
I think that most of the students think that discipline isn't important and it 's a bunch of rules that the adults invented just to annoy them and make their life harder. But lets think about it. How would it be like without discipline at schools and other public institutions. I think it would've been a disaster considering that everyone will be free to do whatever they want. For some people it would've been rather nice but not having rules and not sticking to them might lead to a full house. Therefor I definitely think that there should be discipline at school.